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mark houghton mark houghton is offline
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Join Date: Jul 2008
Location: Central Washington State
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Quote:
Originally Posted by jsveb View Post
Just checked the plugs(w3dpo). Nice spark on all.
I guess next is pump delivery and cp check. Just cannot remember which line is return.

I checked the fuel p. Relays they run, the rear whines more than I remember it did last time.
Just an observation that may or may not mean anything. Recently I was doing some basic troubleshooting, which included pulling the pump relays one at a time to see affect on AFR's at idle. If I pulled the rear relay, the car continued to run pretty much unaffected (at idle, mind you). But if I pulled the front relay, the car would stumble down rpm's and the rear pump could be heard to strain.

I wonder if your front pump is running at all, or perhaps on it's way out, thus not delivering enough fuel and resulting in the lean condition you described?
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Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, stock everything else. The result of a massive Pelicanite good will fire recovery effort. Truely an open book, ready for the slippery slopes to modification.
Old 05-06-2011, 11:46 AM
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